Machine for making staples



(No Model.) 3 Sheets-Sheet 1.

W. P. WHITE.

MACHINE FORMAKING STAPLES No. 498,040. Patented May 23,1893.

(No Model.) 3 Sheets-$116M; 2. W. P. WHITE. MACHINE FOR MAKING STAPLES}No. 498,040. Patented May23, 1893.

5 (minimum (No Model.) 3 Sheets-Sheet 3.

P. WHITE. MAG FOR MAKING STAPLES.

No. 498,040. Patented May 23, 1893.

Swvawboz UNITED STATES PATENT ()rmce.

WENDELL P. WHITE, OF BROCKTON, MASSACHUSETTS, ASSIGNOR TO WILLIAM B.CROSS, OF SAME PLACE, WILLIAM J. J ENKS AND LUTHER STIER-INGER,

OF NEW YORK, N. Y., JERSEY.

AND RICHARD N. DYER, OF EAST ORANGE,NEW

MACHINE FOR MAKING STAPLES.

SPECIFICATION forming part of Letters Patent No. 498,040, dated May 23,1893.

Application filed November 2'7, 1888. Serial No. 291,992. (No model.)

To all whom it may concern.-

Be it known that I, WENDELL P. WHITE, a citizen of the United States,residing at B rockton, in the county of Plymouth and State ofMassachusetts, have invented a certain new and usefullmprovement inMachines for Making Staples, of which the following is a specification.

The object I have in viewis the production of a machine for makingstaples of insulating material, such as are described in Letters PatoutNo. 317,879, and which have heretofore been made by hand. These staplesare made from strips of any suitable insulating material, vulcanizedfiber or wood being a good material for the purpose. The strips have awidth equal to the entire length of the staple and the staples are firstcut transversely from the strip and are then bent in the center to givethem the staple form. Before bending,

the strip of vulcanized fiber or wood must be softened and the staplesmust be held in shape while the material is hardening. I have found itdesirable to soften the strip with alum water, or with steam, before itis presented to the machine.

My machine is designed to form the staple complete from the strip, itfirst cutting the staples from the strip, then bending them, and thendelivering them to a suitable mandrel or holder attached to themachine,which has a capacity for a great number of staples and which isadapted to be removed from the machine and to be placed in a suitableoven for the drying and hardening of the staples.

My machine is provided with various adj ustments for enabling staples ofdifferent lengths and widths and having different distances between thelegs or sides of the staple to be made upon the same machine, and italso has various features of construction to meet the requirements ofwork of this character, as will be hereinafter pointed out in detail.

My invention consists in various novel devices and combinations ofparts, all as more fully hereinafter explained and pointed out by theclaims.

In the accompanying drawings forming a part hereof, Figure 1 is a topView of the machine. Fig. 2 is a side View; Fig. 3 a sectional view of apart of the mandrel or carrier and showing some of the adjacent parts.Fig. 4 is a vertical section through the table of the machine and themandrel showing adjoining parts in elevation. Fig. 5, is an end view ofthe mandrel carrying shaft showing the pivoted bearing block; Fig. 6, anelevation of the gate through which the strip is fed; and Figs. 7, and8, are respectively end and top views of the strip.

A is the frame of the machine from which rise standards A, in which isjournaled the driving shaft 13. On the center of this shaft between thestandards are two small cams or eccentrics a a, and between these two isa third cam or eccentric b, the eccentric I) having a greater throw thanthe eccentrics a, C1,, but acting at the same point in the revolution ofthe shaft.

0 is a bifurcated rocking arm mounted upon a shaft 0' at the rear of theframe and projecting forward under the shaft B, where it is providedwith a head 0 carrying a cutting knife D and a guide arm D. Workingbetween the two sides of the bifurcated rocking arm 0 is a rocking armE,which is mounted at the rear of the frame upon the shaft E andlikewise projects forward under the driving shaft B, where it carries abending knife E working in the rear of the cutting knife D. The twoeccentrics a a bear upon the rocking arm 0, while the centraleccentricbbears upon the rocking arm E. These rocking arms are thrownupwardly by springs c and are depressed by the eccentrics a, a b, theefiect of the movement being to first depress both rocking arms togetheruntil the highest point of the eccentrics a a is reached, when acontinuation of the movementdepresses alone the bending rocking arm E toa further extent. The cutting knife D and the bending knife E are heldby suitable set screws for permitting proper adjustment in alldirections to set these knives to the exact adjustment required.

F is a supporting block mounted upon the frame in front of the cuttingand bending knife. This block carries a horizontal cutting knife F, heldand adjusted by proper screws, which horizontal cutting knife F presentsa cutting edge at right angles to that The guide arm D which is attachedto the head 0 of the rocking arm 0 is also adjustably held by screws, sothat its vertical as Well as its lateral position can be varied.

This guide arm projects down in the rear of andbelow the cutting knife Dand its point e is turned forward and forms a gage to determine thewidth of the staple which will be out from the strip. Attachedadjusta'bly to the block F on its edge next to the cutting knife D aretwo plates ff, carrying studs g, having preferably antifriction rollsupon 1 them. These studs are adjusted toward each 1 other beneath thecutting edge of the horizontal knife F and centrally beneath thevertical cutting knife D. The bending knife E passes between these studsg, and by doing so bends the staple which has been cut from the strip.By adjusting the plates ff toward and away from each other the stapleswill be given a greater or less distance be- These studs 9 are locatedat a point beneath the lower limit of tween their sides or legs.

movement of the vertical cutting knife D.

G is a shaft extending transversely beneath the cutting andbendingknives. shaft is journaled at one end in a bearing h, having a frictionstrap h" adjusted to place more or less friction upon the shaft and toprevent anyretrograde movement. The other end of the shaft G isjournaled in a pivoted bearing '6', which is adapted to be thrown downwhen desired, for slipping the mandrel or staple carrier on to or off ofthe shaft.

a purpose which will be presently explained.

Upon the shaft G is removably mounted the mandrel or staple carrier H.This isa sleeve provided with a spiral groove 70, which is the j shapeand size of the head of the staple. The machine will be provided withdifferent man- I drels having grooves of different width, so that whenthe other parts of the machine are adjusted for a particular size ofstaple, a

proper mandrel having a groove correspond- I is a guide arm, havingafinger which takes in the groove is of the mandrel, so that as This fThe shaft G at this end is also made hollow for a 1 short distance, asshown in Figs. 1 and 5, for

shaft G is turned the mandrel will be advanced by the engagement of thefinger of this guide arm I with the spiral groove of the mandrel. Theguide arm I is pivoted upon a block I, which is secured to the frame andis adjustable by screws laterally and longitudinally, so as to adjust itto the different mandrels that may be placed upon the machine.

A rod m projects from the under side of the 1 arm I and this rod isconnected with a sliding bar 11. which projects forward beneath theframe, so that by the moving of the sliding bar n the guide arm can bethrown up into engagement with the mandrel, or dropped away from it, theformer position being maintained by a shoulder n on the sliding bar it.It is necessary to drop the guide arm I out of engagement with themandrel H when it is desired to remove the mandrel from the machine.

To give the shaft G an intermittent feeding movement it is provided witha ratchet wheel 0 which engages a spring pawl 19 attached to an arm Lrocking on the shaft. This arm is oscillated byapitman M from the end ofthe shaft B to which it is connected eccentrically. This pitman isconnected with the arm L'by means of a slot 13' and a set screw or bolt19 so that thethrow of the arm L can be varied and the pawl can be madeto engage every tooth of the ratchet, or to skip one or more teeth ateach movement so as to turn the shaft and the mandrel to a greater orless extent for each movement, as maybe required, to accommodate thestaple.

N is a 'lever'pivoted upon the base and ghaving at one end a tooth whichnormally rests just above the strip that isbei-ng fed over thehorizontal cutting knife F. The other end of this lever is forked, oneof its fingers being struck by a stud g on the end of the mandrel, whileits other finger at the same time lifts the pawl 10 out of engagementwith the ratchet 0, so that the farther feed movement of the mandrelwill be stopped.

The lever N has 110 function in the operation of t'he-machine-until themandrel reaches the end of its movement, when it is desirable that itshould not be fed any fart-herand that no more staples should be cutfrom the strip,

although the machine may continue to run material P from which thestaples are cut is fed over the horizontal knife F and through theopening of the gate (1, by means of a weight or spring which keeps itforward, as will be well understood. Thexforward end of the strip Pstrikes the gage e; the downward 'm pvement of the cutting knife D cutsoff the thrust into the groove of the mandrel, suchgroove holding themin their proper shape until the mandrel is entirely filled, when it isremoved from the machine and placed in an oven to dry and harden thestaples. To give the staples a proper point the edge of the strip P isshaved in one or in both directions, or is notched, as shown in Figs. 7and 8.

In removing the mandrel from the shaft G a wooden arbor carried by thehand is slipped into the hollow end of the shaft G and the mandrel isslipped oli' of the shaft G onto this hand arbor by which it is held inthe oven. A new mandrel is placed on the shaft G and the operation isrepeated. By reason of the great length of the spiral groove of themandrel, each mandrel is adapted to carrya large number of staples.

What I claim is- 1. In a machine for making staples of vulcanized fiber,wood and similar materials, a turning mandrel or holder having a spiralgroove for the reception of the staples and a feed movement foradvancing the mandrel so as to present unoccupied portions of the groovefor receiving the staples, substantially as set forth.

2. In a machine for making staples of vulcanized fiber, wood and similarmaterials, a turning mandrel or holder mounted removably upon themachine, havinga spiral groove for the reception of the staples and afeed movement for advancing the mandrel so as to present unoccupiedportions of the groove for receiving the staples, substantially as setforth.

3. In a machine for making staples of vulcanized fiber, wood and similarmaterials, the combination of vertical and horizontal shearin g knivesfor cutting the staples transversely from a strip, with a bending knifefor bending the staples and adjustable studs between which the bendingknife acts, substantially as set forth.

4. In a machine for making staples of vulcanized fiber, wood and similarmaterials, the combination with the cutting and bending knives, of theturning mandrel having a spiral groove, the shaft upon which the mandrelis removably carried and the dropping or removable guide arm foradvancing the mandrel as the shaft is turned, substantially as setforth.

5. In a machine for making staples of vulcanized fiber, wood and similarmaterials, the combination with the cutting and bending knives, of theturning mandrel having a spiral groove and an adjustable feed movementfor such mandrel whereby it will accommodate staples of differentWidths, substantially as set forth.

(3. In a machine for making staples of vulcanized fiber, wood andsimilar materials, the combination with the cutting and bending knives,of the turning mandrel, a feed movement for such mandrel, and a stoplever operatedby a stud on the mandrel and acting to stop the feedmovement and to hold the strip of material when the mandrel is filled,substantially as set forth.

This specification signed and witnessed this 25th day of July, 1888.

VVENDELL P. WHITE.

Witnesses:

HERBERT H. CHASE WILLIAM B. Onoss.

